531685342 has 16 divisors (see below), whose sum is σ = 837799200. Its totient is φ = 252574432.

The previous prime is 531685339. The next prime is 531685361. The reversal of 531685342 is 243586135.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31933 + ... + 45640.

It is an arithmetic number, because the mean of its divisors is an integer number (52362450).

Almost surely, 2^531685342 is an apocalyptic number.

531685342 is a deficient number, since it is larger than the sum of its proper divisors (306113858).

531685342 is a wasteful number, since it uses less digits than its factorization.

531685342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77747.

The product of its digits is 86400, while the sum is 37.

The square root of 531685342 is about 23058.3031032208. The cubic root of 531685342 is about 810.1241195764.

The spelling of 531685342 in words is "five hundred thirty-one million, six hundred eighty-five thousand, three hundred forty-two".